Reference evapotranspiration estimation by the Irrigameter in Southern Tocantins State, Brazil
ABSTRACT The choice for the most appropriate method to estimate evapotranspiration depends on the availability of meteorological data, required level of precision and cost of equipment acquisition. For this estimate, the Irrigameter is simple to operate, precise and economically viable to farmers. I...
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Universidade Federal de Campina Grande
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| author | Luan B. Giovanelli Rubens A. Oliveira Jair C. Oliveira-Filho Júlio C. M. Baptestini Fábio T. Delazari Gilberto C. Sediyama |
| author_facet | Luan B. Giovanelli Rubens A. Oliveira Jair C. Oliveira-Filho Júlio C. M. Baptestini Fábio T. Delazari Gilberto C. Sediyama |
| author_sort | Luan B. Giovanelli |
| collection | DOAJ |
| description | ABSTRACT The choice for the most appropriate method to estimate evapotranspiration depends on the availability of meteorological data, required level of precision and cost of equipment acquisition. For this estimate, the Irrigameter is simple to operate, precise and economically viable to farmers. In addition, it collaborates in the application of the necessary water depth to crops, thus avoiding unnecessary energy consumption, environmental degradation, and increasing crop yield and improving crop quality. In this context, the objective of this research was to estimate the reference evapotranspiration using the Irrigameter, for the climatic conditions of the Southern Tocantins state, Brazil. The experimental design was completely randomized with Irrigameters operating with seven water heights in the evaporator, as treatments, with three replicates. The reference evapotranspiration was obtained by FAO-56 Penman-Monteith method. For the analyzed climatic conditions, the water height in the evaporator recommended to estimate the reference evaporation in the spring is 3.4 cm; summer, 4.0 cm; fall, 3.8 cm; and winter, 2.3 cm. |
| format | Article |
| id | doaj-art-8132b4c9727d4404ab0166c2dc401eb3 |
| institution | Kabale University |
| issn | 1807-1929 |
| language | English |
| publisher | Universidade Federal de Campina Grande |
| record_format | Article |
| series | Revista Brasileira de Engenharia Agrícola e Ambiental |
| spelling | doaj-art-8132b4c9727d4404ab0166c2dc401eb32025-08-20T03:35:06ZengUniversidade Federal de Campina GrandeRevista Brasileira de Engenharia Agrícola e Ambiental1807-192921529329710.1590/1807-1929/agriambi.v21n5p293-297S1415-43662017000500293Reference evapotranspiration estimation by the Irrigameter in Southern Tocantins State, BrazilLuan B. GiovanelliRubens A. OliveiraJair C. Oliveira-FilhoJúlio C. M. BaptestiniFábio T. DelazariGilberto C. SediyamaABSTRACT The choice for the most appropriate method to estimate evapotranspiration depends on the availability of meteorological data, required level of precision and cost of equipment acquisition. For this estimate, the Irrigameter is simple to operate, precise and economically viable to farmers. In addition, it collaborates in the application of the necessary water depth to crops, thus avoiding unnecessary energy consumption, environmental degradation, and increasing crop yield and improving crop quality. In this context, the objective of this research was to estimate the reference evapotranspiration using the Irrigameter, for the climatic conditions of the Southern Tocantins state, Brazil. The experimental design was completely randomized with Irrigameters operating with seven water heights in the evaporator, as treatments, with three replicates. The reference evapotranspiration was obtained by FAO-56 Penman-Monteith method. For the analyzed climatic conditions, the water height in the evaporator recommended to estimate the reference evaporation in the spring is 3.4 cm; summer, 4.0 cm; fall, 3.8 cm; and winter, 2.3 cm.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000500293&lng=en&tlng=enirrigation managementirrigated agricultureevaporator |
| spellingShingle | Luan B. Giovanelli Rubens A. Oliveira Jair C. Oliveira-Filho Júlio C. M. Baptestini Fábio T. Delazari Gilberto C. Sediyama Reference evapotranspiration estimation by the Irrigameter in Southern Tocantins State, Brazil Revista Brasileira de Engenharia Agrícola e Ambiental irrigation management irrigated agriculture evaporator |
| title | Reference evapotranspiration estimation by the Irrigameter in Southern Tocantins State, Brazil |
| title_full | Reference evapotranspiration estimation by the Irrigameter in Southern Tocantins State, Brazil |
| title_fullStr | Reference evapotranspiration estimation by the Irrigameter in Southern Tocantins State, Brazil |
| title_full_unstemmed | Reference evapotranspiration estimation by the Irrigameter in Southern Tocantins State, Brazil |
| title_short | Reference evapotranspiration estimation by the Irrigameter in Southern Tocantins State, Brazil |
| title_sort | reference evapotranspiration estimation by the irrigameter in southern tocantins state brazil |
| topic | irrigation management irrigated agriculture evaporator |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000500293&lng=en&tlng=en |
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